An approach for dynamic optical transport network planning and analysis

In this paper, a method for planning and analyzing a dynamic optical transport network is described. The method is "event based" and a relative time scale is adopted. Events include setting up/tearing down optical channels and failure/restoration of network elements. Each connection demand is characterized by its own type of protection, routing strategy and priority, independently of the correspondent attributes of the other demands. The method works in two main modes: Design and Analysis. In Design mode the network is sized according to the offered demand while in the Analysis mode the network resources are assigned beforehand and the behavior of the network (traffic lost in case of lack of resources or failures) can be evaluated. The method is implemented by a computer program based on a new particular representation of the network, specifically conceived to effectively model optical transport networks. The paper will also include an example of design and analysis of a realistic Italian Optical network.

[1]  Biswanath Mukherjee,et al.  A novel generic graph model for traffic grooming in heterogeneous WDM mesh networks , 2003, TNET.

[2]  A. Richa,et al.  Models, complexity and algorithms for the design of multifiber WDM networks , 2003, 10th International Conference on Telecommunications, 2003. ICT 2003..

[3]  G. D'Orazio,et al.  A framework for class of service definition in GMPLS-based meshed ASTN , 2003, Fourth International Workshop on Design of Reliable Communication Networks, 2003. (DRCN 2003). Proceedings..

[4]  Guido Maier,et al.  Static lightpath design by heuristic methods in multifiber WDM networks , 2000, Other Conferences.

[5]  Biswanath Mukherjee,et al.  Cost-effective WDM backbone network design with OXCs of different bandwidth granularities , 2003, OFC 2003 Optical Fiber Communications Conference, 2003..

[6]  Subrata Banerjee,et al.  A new model for optimal routing and wavelength assignment in wavelength division multiplexed optical networks , 1996, Proceedings of IEEE INFOCOM '96. Conference on Computer Communications.

[7]  Biswanath Mukherjee,et al.  Traffic engineering in multigranularity heterogeneous optical WDM mesh networks through dynamic traffic grooming , 2003, IEEE Netw..

[8]  Chao Lu,et al.  Efficient heuristic algorithms for light-path routing and wavelength assignment in WDM networks under dynamically varying loads , 2001, Comput. Commun..

[9]  Sajal K. Das,et al.  An efficient heuristic for routing and wavelength assignment in optical WDM networks , 2002, 2002 IEEE International Conference on Communications. Conference Proceedings. ICC 2002 (Cat. No.02CH37333).

[10]  Harmen R. van As,et al.  Service-specific resource allocation in WDM networks with quality constraints , 2000, IEEE Journal on Selected Areas in Communications.

[11]  Imrich Chlamtac,et al.  Lightpath (Wavelength) Routing in Large WDM Networks , 1996, IEEE J. Sel. Areas Commun..

[12]  V. Li,et al.  A Wavelength-Convertible Optical Network , 1993 .

[13]  Gee-Swee Poo,et al.  An expanded graph model for MCRWA problem in WDM networks , 2002, 27th Annual IEEE Conference on Local Computer Networks, 2002. Proceedings. LCN 2002..